graph TD
Sun["Sun: E(lambda) Irradiance (W/m2 nm)"] -->|Incident Flux| Target["Canopy/Soil"]
Target -->|Reflected/Emitted Radiance| Sensor["Optical Sensor"]
AGRI4401 Precision Agriculture
July 1, 2025
graph TD
Sun["Sun: E(lambda) Irradiance (W/m2 nm)"] -->|Incident Flux| Target["Canopy/Soil"]
Target -->|Reflected/Emitted Radiance| Sensor["Optical Sensor"]
graph LR UV[UV 380nm ] --> Visible[Visible 400-700 nm] Visible --> NIR[NIR 700-1000 nm] NIR --> SWIR[SWIR 1.0 to 2.5 µm] SWIR --> MWIR[MWIR]
graph TD A[NDVI Time Series] -->|Detects Anomalies| D[Stress Event] B[Canopy Temperature] -->|Heat Stress Indication| D C[Soil Moisture Logs] -->|Drought Signal| D D --> E[Update Management Zone] E --> F[Variable-Rate Response]
graph TD
A[Data Acquisition: Satellite] --> B[Preprocessing: Atmospheric Correction]
B --> C[Compute Spectral Indices NDVI, Red-Edge]
C --> D{Retrieval Method}
D -->|Empirical| E[Regression Model]
D -->|Physical| F[RTM Inversion]
E --> G[LAI Map]
F --> G[LAI Map]
G --> H[Precision Application: Scouting, VRF]
graph LR
A[Yield Data Collection] --> B[Yield Map Analysis]
B --> C[Variability Pattern Identification]
C --> D[Management Zone Delineation]
D --> E[Site-Specific Input Application]
graph TD
A[Crop Quality Sensors] --> B[Data Acquisition]
B --> C{Data Processing}
C --> D[Quality Indices]
C --> E[Spatial Mapping]
E --> F[Zone-Based Decisions]
D --> G[Quality Grading & Harvest Timing]
graph LR A[Plan Grid Sampling Paths] --> B[Field Data Collection] B --> C[Data Upload & QC] C --> D[Geostatistical Analysis] D --> E[Site-Specific Interventions] E --> F[Review & Adjust]